Home / 54,345.20-74,999.96-30,473.40

Finding the Fourth Proportional to 54,345.20, 74,999.96 and 30,473.40

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Solution

The fourth proportional to 54,345.20, 74,999.96 and 30,473.40 is: 42,055.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,345.20 : 74,999.96 = 30,473.40 : x
  2. Step 2: Convert to fraction form
    54,345.20/74,999.96 = 30,473.40/x
  3. Step 3: Cross multiply
    54,345.20x = 74,999.96 × 30,473.40
  4. Step 4: Simplify right side
    54,345.20x = 2,285,503,781.06
  5. Step 5: Solve for x
    x = 2,285,503,781.06/54,345.20
  6. Step 6: Final answer
    x = 42,055.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.